ok so i played the map.
its ok i would say. lots of enemies but sometimes seemed to be to few ammo. in those places where you have to fight purlin, i would suggest putting some tek arrows.
I liked the battle at the large bridge. I think its a cool Idea. what i would suggest putting a minigun at the start of the bridge to fight the hordes of smaller enemies. not to make it easier but to make it more fun :D